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Expired Canadian patentCanada

Boots for aquatic activities

CA 1077263 A · Owner: Casteneda, Fernando · Inventors: Stockli, Jean-Louis; Casteneda, Fernando; Stockli, Andre

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

This invention relates to boots for divers used in association, with a wet suit, dry suit other diving gears or for aquatic other activities. Each boot comprises a sock made of cellular elastomeric material, preferably covered by nylon fabric on one or two sides and an outsole, together with a back stay a toe-cap and a foxing, made of non-cellular rubber and directly vulcanized as a unit on the sock. The resulting boot is long-lasting because the outsole does not become detached from the sock. Vulcanization is carried out in such a way that it does not affect the cellular elastomeric material.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted May 13, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMay 13, 1980
Term endedMay 13, 1997
Patent numberCA 1077263 A
Classification (IPC)A43B5/00 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMay 13, 1980Term endedMay 13, 1997

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.